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<div class="title">cv::ximgproc::EdgeDrawing Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span><div class="ingroups"><a class="el" href="../../df/d2d/group__ximgproc.html">Extended Image Processing</a> » <a class="el" href="../../d4/d8b/group__ximgproc__edge__drawing.html">EdgeDrawing</a></div></div>  </div>
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<p>Class implementing the ED (<a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html" title="Class implementing the ED (EdgeDrawing) , EDLines , EDPF  and EDCircles  algorithms. ">EdgeDrawing</a>) <a class="el" href="../../d0/de3/citelist.html#CITEREF_topal2012edge">[248]</a>, EDLines <a class="el" href="../../d0/de3/citelist.html#CITEREF_akinlar2011edlines">[4]</a>, EDPF <a class="el" href="../../d0/de3/citelist.html#CITEREF_akinlar2012edpf">[5]</a> and EDCircles <a class="el" href="../../d0/de3/citelist.html#CITEREF_akinlar2013edcircles">[6]</a> algorithms.  
 <a href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#details">More...</a></p>
<p><code>#include &lt;opencv2/ximgproc/edge_drawing.hpp&gt;</code></p>
<div class="dynheader">
Inheritance diagram for cv::ximgproc::EdgeDrawing:</div>
<div class="dyncontent">
 <div class="center">
  <img alt="" src="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.png" usemap="#cv::ximgproc::EdgeDrawing_map"/>
  <map id="cv::ximgproc::EdgeDrawing_map" name="cv::ximgproc::EdgeDrawing_map">
<area alt="cv::Algorithm" coords="0,0,165,24" href="../../d3/d46/classcv_1_1Algorithm.html" shape="rect" title="This is a base class for all more or less complex algorithms in OpenCV. "/>
</map>
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<table class="memberdecls">
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Classes</h2></td></tr>
<tr class="memitem:"><td align="right" class="memItemLeft" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d0/da6/structcv_1_1ximgproc_1_1EdgeDrawing_1_1Params.html">Params</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:add5e0d573db3cdbe3ebf014d238825e4"><td align="right" class="memItemLeft" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#add5e0d573db3cdbe3ebf014d238825e4">GradientOperator</a> { <br/>
  <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#add5e0d573db3cdbe3ebf014d238825e4aba43e88b519da3fe0cc06d702001b986">PREWITT</a> = 0, 
<br/>
  <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#add5e0d573db3cdbe3ebf014d238825e4a47d6ccdbd7dfa30a65b9de10862dd222">SOBEL</a> = 1, 
<br/>
  <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#add5e0d573db3cdbe3ebf014d238825e4adbb9422afc83dca39ca18964372ccadc">SCHARR</a> = 2, 
<br/>
  <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#add5e0d573db3cdbe3ebf014d238825e4af19022e200b94d2f1b140317924b9041">LSD</a> = 3
<br/>
 }</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a04095db473b12d74ed20260eec8c6eb3"><td align="right" class="memItemLeft" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a04095db473b12d74ed20260eec8c6eb3">~EdgeDrawing</a> ()</td></tr>
<tr class="separator:a04095db473b12d74ed20260eec8c6eb3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7a91e7e95f45d50d0f4e110f9c37c09c"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a7a91e7e95f45d50d0f4e110f9c37c09c">detectEdges</a> (<a class="el" href="../../dc/d84/group__core__basic.html#ga353a9de602fe76c709e12074a6f362ba">InputArray</a> src)=0</td></tr>
<tr class="memdesc:a7a91e7e95f45d50d0f4e110f9c37c09c"><td class="mdescLeft"> </td><td class="mdescRight">Detects edges and prepares them to detect lines and ellipses.  <a href="#a7a91e7e95f45d50d0f4e110f9c37c09c">More...</a><br/></td></tr>
<tr class="separator:a7a91e7e95f45d50d0f4e110f9c37c09c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9d3c965d1a87375358f8e85748c7f5f3"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a9d3c965d1a87375358f8e85748c7f5f3">detectEllipses</a> (<a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> ellipses)=0</td></tr>
<tr class="memdesc:a9d3c965d1a87375358f8e85748c7f5f3"><td class="mdescLeft"> </td><td class="mdescRight">Detects circles and ellipses.  <a href="#a9d3c965d1a87375358f8e85748c7f5f3">More...</a><br/></td></tr>
<tr class="separator:a9d3c965d1a87375358f8e85748c7f5f3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab3868142e73527efba88c31d6e92ff30"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#ab3868142e73527efba88c31d6e92ff30">detectLines</a> (<a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> lines)=0</td></tr>
<tr class="memdesc:ab3868142e73527efba88c31d6e92ff30"><td class="mdescLeft"> </td><td class="mdescRight">Detects lines.  <a href="#ab3868142e73527efba88c31d6e92ff30">More...</a><br/></td></tr>
<tr class="separator:ab3868142e73527efba88c31d6e92ff30"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a78253abcbe4b167214a5d846c22a7646"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a78253abcbe4b167214a5d846c22a7646">getEdgeImage</a> (<a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> dst)=0</td></tr>
<tr class="separator:a78253abcbe4b167214a5d846c22a7646"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a92f9374736393c6659f65e1b4ef4b34c"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a92f9374736393c6659f65e1b4ef4b34c">getGradientImage</a> (<a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> dst)=0</td></tr>
<tr class="separator:a92f9374736393c6659f65e1b4ef4b34c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab9861227bf9fc4bdcd01771539662911"><td align="right" class="memItemLeft" valign="top">virtual std::vector&lt; std::vector&lt; <a class="el" href="../../dc/d84/group__core__basic.html#ga1e83eafb2d26b3c93f09e8338bcab192">Point</a> &gt; &gt; </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#ab9861227bf9fc4bdcd01771539662911">getSegments</a> ()=0</td></tr>
<tr class="separator:ab9861227bf9fc4bdcd01771539662911"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a046401bf345522ede3c01e28222522cf"><td align="right" class="memItemLeft" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a046401bf345522ede3c01e28222522cf">setParams</a> (const <a class="el" href="../../d0/da6/structcv_1_1ximgproc_1_1EdgeDrawing_1_1Params.html">EdgeDrawing::Params</a> &amp;parameters)</td></tr>
<tr class="memdesc:a046401bf345522ede3c01e28222522cf"><td class="mdescLeft"> </td><td class="mdescRight">sets parameters.  <a href="#a046401bf345522ede3c01e28222522cf">More...</a><br/></td></tr>
<tr class="separator:a046401bf345522ede3c01e28222522cf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classcv_1_1Algorithm"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classcv_1_1Algorithm')"><img alt="-" src="../../closed.png"/> Public Member Functions inherited from <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html">cv::Algorithm</a></td></tr>
<tr class="memitem:a827c8b2781ed17574805f373e6054ff1 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a827c8b2781ed17574805f373e6054ff1">Algorithm</a> ()</td></tr>
<tr class="separator:a827c8b2781ed17574805f373e6054ff1 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8ae826127fa0f1f8d10a24841bd376f8 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a8ae826127fa0f1f8d10a24841bd376f8">~Algorithm</a> ()</td></tr>
<tr class="separator:a8ae826127fa0f1f8d10a24841bd376f8 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aec9c965448e4dc851d7cacd3abd84cd1 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#aec9c965448e4dc851d7cacd3abd84cd1">clear</a> ()</td></tr>
<tr class="memdesc:aec9c965448e4dc851d7cacd3abd84cd1 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Clears the algorithm state.  <a href="../../d3/d46/classcv_1_1Algorithm.html#aec9c965448e4dc851d7cacd3abd84cd1">More...</a><br/></td></tr>
<tr class="separator:aec9c965448e4dc851d7cacd3abd84cd1 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab6a18f1825475643e94381697d413972 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#ab6a18f1825475643e94381697d413972">empty</a> () const</td></tr>
<tr class="memdesc:ab6a18f1825475643e94381697d413972 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html" title="This is a base class for all more or less complex algorithms in OpenCV. ">Algorithm</a> is empty (e.g. in the very beginning or after unsuccessful read.  <a href="../../d3/d46/classcv_1_1Algorithm.html#ab6a18f1825475643e94381697d413972">More...</a><br/></td></tr>
<tr class="separator:ab6a18f1825475643e94381697d413972 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a286fc82744ccab3d248aca44524266a9 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a286fc82744ccab3d248aca44524266a9">getDefaultName</a> () const</td></tr>
<tr class="separator:a286fc82744ccab3d248aca44524266a9 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aef2ad3f4145bd6e8c3664eb1c4b5e1e6 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#aef2ad3f4145bd6e8c3664eb1c4b5e1e6">read</a> (const <a class="el" href="../../de/dd9/classcv_1_1FileNode.html">FileNode</a> &amp;fn)</td></tr>
<tr class="memdesc:aef2ad3f4145bd6e8c3664eb1c4b5e1e6 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Reads algorithm parameters from a file storage.  <a href="../../d3/d46/classcv_1_1Algorithm.html#aef2ad3f4145bd6e8c3664eb1c4b5e1e6">More...</a><br/></td></tr>
<tr class="separator:aef2ad3f4145bd6e8c3664eb1c4b5e1e6 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0a880744bc4e3f45711444571df47d67 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a0a880744bc4e3f45711444571df47d67">save</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;filename) const</td></tr>
<tr class="separator:a0a880744bc4e3f45711444571df47d67 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1f8ad7b8add515077367fb9949a174d2 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a1f8ad7b8add515077367fb9949a174d2">write</a> (<a class="el" href="../../da/d56/classcv_1_1FileStorage.html">FileStorage</a> &amp;fs) const</td></tr>
<tr class="memdesc:a1f8ad7b8add515077367fb9949a174d2 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Stores algorithm parameters in a file storage.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a1f8ad7b8add515077367fb9949a174d2">More...</a><br/></td></tr>
<tr class="separator:a1f8ad7b8add515077367fb9949a174d2 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a763a62d1b03042eef7d7fc3ac6c87c79 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a763a62d1b03042eef7d7fc3ac6c87c79">write</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; <a class="el" href="../../da/d56/classcv_1_1FileStorage.html">FileStorage</a> &gt; &amp;fs, const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;name=<a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a>()) const</td></tr>
<tr class="memdesc:a763a62d1b03042eef7d7fc3ac6c87c79 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">simplified API for language bindings This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a763a62d1b03042eef7d7fc3ac6c87c79">More...</a><br/></td></tr>
<tr class="separator:a763a62d1b03042eef7d7fc3ac6c87c79 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a18803eb87ce42b860ee8ccdb65852d43"><td align="right" class="memItemLeft" valign="top"><a class="el" href="../../d0/da6/structcv_1_1ximgproc_1_1EdgeDrawing_1_1Params.html">Params</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a18803eb87ce42b860ee8ccdb65852d43">params</a></td></tr>
<tr class="separator:a18803eb87ce42b860ee8ccdb65852d43"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_static_methods_classcv_1_1Algorithm"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_classcv_1_1Algorithm')"><img alt="-" src="../../closed.png"/> Static Public Member Functions inherited from <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html">cv::Algorithm</a></td></tr>
<tr class="memitem:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td class="memTemplParams" colspan="2">template&lt;typename _Tp &gt; </td></tr>
<tr class="memitem:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td align="right" class="memTemplItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; _Tp &gt; </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a623841c33b58ea9c4847da04607e067b">load</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;filename, const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;objname=<a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a>())</td></tr>
<tr class="memdesc:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Loads algorithm from the file.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a623841c33b58ea9c4847da04607e067b">More...</a><br/></td></tr>
<tr class="separator:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memTemplParams" colspan="2">template&lt;typename _Tp &gt; </td></tr>
<tr class="memitem:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td align="right" class="memTemplItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; _Tp &gt; </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a3ba305a10d02479c13cf7d169c321547">loadFromString</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;strModel, const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;objname=<a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a>())</td></tr>
<tr class="memdesc:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Loads algorithm from a String.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a3ba305a10d02479c13cf7d169c321547">More...</a><br/></td></tr>
<tr class="separator:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memTemplParams" colspan="2">template&lt;typename _Tp &gt; </td></tr>
<tr class="memitem:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td align="right" class="memTemplItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; _Tp &gt; </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#ad8c591bacb34c485f5b7a250c314fc53">read</a> (const <a class="el" href="../../de/dd9/classcv_1_1FileNode.html">FileNode</a> &amp;fn)</td></tr>
<tr class="memdesc:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Reads algorithm from the file node.  <a href="../../d3/d46/classcv_1_1Algorithm.html#ad8c591bacb34c485f5b7a250c314fc53">More...</a><br/></td></tr>
<tr class="separator:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pro_methods_classcv_1_1Algorithm"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_classcv_1_1Algorithm')"><img alt="-" src="../../closed.png"/> Protected Member Functions inherited from <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html">cv::Algorithm</a></td></tr>
<tr class="memitem:a68eeca71617474ad3d4561786f0289d2 inherit pro_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a68eeca71617474ad3d4561786f0289d2">writeFormat</a> (<a class="el" href="../../da/d56/classcv_1_1FileStorage.html">FileStorage</a> &amp;fs) const</td></tr>
<tr class="separator:a68eeca71617474ad3d4561786f0289d2 inherit pro_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a id="details" name="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Class implementing the ED (<a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html" title="Class implementing the ED (EdgeDrawing) , EDLines , EDPF  and EDCircles  algorithms. ">EdgeDrawing</a>) <a class="el" href="../../d0/de3/citelist.html#CITEREF_topal2012edge">[248]</a>, EDLines <a class="el" href="../../d0/de3/citelist.html#CITEREF_akinlar2011edlines">[4]</a>, EDPF <a class="el" href="../../d0/de3/citelist.html#CITEREF_akinlar2012edpf">[5]</a> and EDCircles <a class="el" href="../../d0/de3/citelist.html#CITEREF_akinlar2013edcircles">[6]</a> algorithms. </p>
<p>EDGE DRAWING LIBRARY FOR GEOMETRIC FEATURE EXTRACTION AND VALIDATION</p>
<p>Edge Drawing (ED) algorithm is an proactive approach on edge detection problem. In contrast to many other existing edge detection algorithms which follow a subtractive approach (i.e. after applying gradient filters onto an image eliminating pixels w.r.t. several rules, e.g. non-maximal suppression and hysteresis in Canny), ED algorithm works via an additive strategy, i.e. it picks edge pixels one by one, hence the name Edge Drawing. Then we process those random shaped edge segments to extract higher level edge features, i.e. lines, circles, ellipses, etc. The popular method of extraction edge pixels from the thresholded gradient magnitudes is non-maximal supressiun that tests every pixel whether it has the maximum gradient response along its gradient direction and eliminates if it does not. However, this method does not check status of the neighboring pixels, and therefore might result low quality (in terms of edge continuity, smoothness, thinness, localization) edge segments. Instead of non-maximal supression, ED points a set of edge pixels and join them by maximizing the total gradient response of edge segments. Therefore it can extract high quality edge segments without need for an additional hysteresis step. </p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
<a id="add5e0d573db3cdbe3ebf014d238825e4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#add5e0d573db3cdbe3ebf014d238825e4">◆ </a></span>GradientOperator</h2>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">enum <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#add5e0d573db3cdbe3ebf014d238825e4">cv::ximgproc::EdgeDrawing::GradientOperator</a></td>
        </tr>
      </table>
</div><div class="memdoc">
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="add5e0d573db3cdbe3ebf014d238825e4aba43e88b519da3fe0cc06d702001b986"></a>PREWITT </td><td class="fielddoc"></td></tr>
<tr><td class="fieldname"><a id="add5e0d573db3cdbe3ebf014d238825e4a47d6ccdbd7dfa30a65b9de10862dd222"></a>SOBEL </td><td class="fielddoc"></td></tr>
<tr><td class="fieldname"><a id="add5e0d573db3cdbe3ebf014d238825e4adbb9422afc83dca39ca18964372ccadc"></a>SCHARR </td><td class="fielddoc"></td></tr>
<tr><td class="fieldname"><a id="add5e0d573db3cdbe3ebf014d238825e4af19022e200b94d2f1b140317924b9041"></a>LSD </td><td class="fielddoc"></td></tr>
</table>
</div>
</div>
<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a04095db473b12d74ed20260eec8c6eb3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a04095db473b12d74ed20260eec8c6eb3">◆ </a></span>~EdgeDrawing()</h2>
<div class="memitem">
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          <td class="memname">virtual cv::ximgproc::EdgeDrawing::~EdgeDrawing </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="a7a91e7e95f45d50d0f4e110f9c37c09c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7a91e7e95f45d50d0f4e110f9c37c09c">◆ </a></span>detectEdges()</h2>
<div class="memitem">
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  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">virtual void cv::ximgproc::EdgeDrawing::detectEdges </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../dc/d84/group__core__basic.html#ga353a9de602fe76c709e12074a6f362ba">InputArray</a> </td>
          <td class="paramname"><em>src</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.ximgproc_EdgeDrawing.detectEdges(</td><td class="paramname">src</td><td>)</td></tr></table>
</div><div class="memdoc">
<p>Detects edges and prepares them to detect lines and ellipses. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">src</td><td>input image </td></tr>
  </table>
  </dd>
</dl>
</div>
</div>
<a id="a9d3c965d1a87375358f8e85748c7f5f3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9d3c965d1a87375358f8e85748c7f5f3">◆ </a></span>detectEllipses()</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">virtual void cv::ximgproc::EdgeDrawing::detectEllipses </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> </td>
          <td class="paramname"><em>ellipses</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>ellipses</td><td>=</td><td>cv.ximgproc_EdgeDrawing.detectEllipses(</td><td class="paramname">[, ellipses]</td><td>)</td></tr></table>
</div><div class="memdoc">
<p>Detects circles and ellipses. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ellipses</td><td>output Vec&lt;6d&gt; contains center point and perimeter for circles. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>you should call <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a7a91e7e95f45d50d0f4e110f9c37c09c" title="Detects edges and prepares them to detect lines and ellipses. ">detectEdges()</a> method before call this. </dd></dl>
</div>
</div>
<a id="ab3868142e73527efba88c31d6e92ff30"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab3868142e73527efba88c31d6e92ff30">◆ </a></span>detectLines()</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">virtual void cv::ximgproc::EdgeDrawing::detectLines </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> </td>
          <td class="paramname"><em>lines</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>lines</td><td>=</td><td>cv.ximgproc_EdgeDrawing.detectLines(</td><td class="paramname">[, lines]</td><td>)</td></tr></table>
</div><div class="memdoc">
<p>Detects lines. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">lines</td><td>output Vec&lt;4f&gt; contains start point and end point of detected lines. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section note"><dt>Note</dt><dd>you should call <a class="el" href="../../d1/d1c/classcv_1_1ximgproc_1_1EdgeDrawing.html#a7a91e7e95f45d50d0f4e110f9c37c09c" title="Detects edges and prepares them to detect lines and ellipses. ">detectEdges()</a> method before call this. </dd></dl>
</div>
</div>
<a id="a78253abcbe4b167214a5d846c22a7646"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a78253abcbe4b167214a5d846c22a7646">◆ </a></span>getEdgeImage()</h2>
<div class="memitem">
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<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">virtual void cv::ximgproc::EdgeDrawing::getEdgeImage </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> </td>
          <td class="paramname"><em>dst</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>dst</td><td>=</td><td>cv.ximgproc_EdgeDrawing.getEdgeImage(</td><td class="paramname">[, dst]</td><td>)</td></tr></table>
</div><div class="memdoc">
</div>
</div>
<a id="a92f9374736393c6659f65e1b4ef4b34c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a92f9374736393c6659f65e1b4ef4b34c">◆ </a></span>getGradientImage()</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">virtual void cv::ximgproc::EdgeDrawing::getGradientImage </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="../../dc/d84/group__core__basic.html#gaad17fda1d0f0d1ee069aebb1df2913c0">OutputArray</a> </td>
          <td class="paramname"><em>dst</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>dst</td><td>=</td><td>cv.ximgproc_EdgeDrawing.getGradientImage(</td><td class="paramname">[, dst]</td><td>)</td></tr></table>
</div><div class="memdoc">
</div>
</div>
<a id="ab9861227bf9fc4bdcd01771539662911"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab9861227bf9fc4bdcd01771539662911">◆ </a></span>getSegments()</h2>
<div class="memitem">
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  <tr>
  <td class="mlabels-left">
      <table class="memname">
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          <td class="memname">virtual std::vector&lt;std::vector&lt;<a class="el" href="../../dc/d84/group__core__basic.html#ga1e83eafb2d26b3c93f09e8338bcab192">Point</a>&gt; &gt; cv::ximgproc::EdgeDrawing::getSegments </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.ximgproc_EdgeDrawing.getSegments(</td><td class="paramname"></td><td>)</td></tr></table>
</div><div class="memdoc">
</div>
</div>
<a id="a046401bf345522ede3c01e28222522cf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a046401bf345522ede3c01e28222522cf">◆ </a></span>setParams()</h2>
<div class="memitem">
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      <table class="memname">
        <tr>
          <td class="memname">void cv::ximgproc::EdgeDrawing::setParams </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="../../d0/da6/structcv_1_1ximgproc_1_1EdgeDrawing_1_1Params.html">EdgeDrawing::Params</a> &amp; </td>
          <td class="paramname"><em>parameters</em></td><td>)</td>
          <td></td>
        </tr>
      </table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.ximgproc_EdgeDrawing.setParams(</td><td class="paramname">parameters</td><td>)</td></tr></table>
</div><div class="memdoc">
<p>sets parameters. </p>
<p>this function is meant to be used for parameter setting in other languages than c++. </p>
</div>
</div>
<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a18803eb87ce42b860ee8ccdb65852d43">◆ </a></span>params</h2>
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          <td class="memname"><a class="el" href="../../d0/da6/structcv_1_1ximgproc_1_1EdgeDrawing_1_1Params.html">Params</a> cv::ximgproc::EdgeDrawing::params</td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>opencv2/ximgproc/<a class="el" href="../../d8/dd5/edge__drawing_8hpp.html">edge_drawing.hpp</a></li>
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